Liftmaster 990LM Surge Protector protects your garage door operator for most lightning strikes and power surges. Compatible with all Chamberlain, Craftsman and Liftmaster models made after 1994. Includes surge protector and instructions.
- Safely protects the entire garage door opener system, including the AC power line, control panel and The Protector System® safety sensors.
- Made to withstand most power surges and lightning strikes.
- Liftmaster 990LM Surge Protector can be used with LiftMaster® garage door openers from 1994 to present.
- Easy to install.